A continuous quenching frame suitable for large-size high-quality bolts

Abstract

The utility model discloses a kind of continuous quenching material frame suitable for large-size high-quality bolt, reinforcing mesh is provided in frame body, several small supports are arranged at equal intervals in reinforcing mesh, one straight pin is fixedly connected in each of two sides front bottom of frame body, one round hook pin is fixedly connected in each of two sides rear bottom of frame body, multiple frame bodies are sequentially arranged, the straight pin of the rear one of two adjacent frame bodies is set and is clamped into the round hook pin on the front one of frame bodies.Bolt is placed into frame body, bolt is erected on small support, so that the contact surface of bolt lapping frame body or reinforcing mesh is reduced, and then heating uniformity and efficiency are improved;The front one of frame body falls to quenching pool under the action of gravity, bolt in frame body is poured into quenching pool, and simultaneously the front one of frame body is hung on the straight pin of the rear one of frame body by round hook pin, so that frame body is avoided to fall into quenching pool, and then the cooling efficiency of bolt is improved.

Description

Technical Field

[0001] This utility model relates to the field of quenching material frame technology, specifically to a continuous quenching material frame suitable for large-size, high-quality bolts. Background Technology

[0002] Batch quenching and tempering of bolts using a continuous furnace is a common heat treatment method. However, for large-size, high-quality bolts, traditional stacking quenching heating can lead to poor heating at the bolt overlaps. Furthermore, using a stock frame for loading bolts results in the stock frame and bolts falling into the quenching medium together during quenching, reducing cooling efficiency and making it difficult to guarantee the microstructure and properties. Therefore, when using a continuous furnace for quenching large-size, high-quality bolts, it is necessary to minimize overlap during heating and prevent the stock frame from falling off during quenching. Based on this, this invention proposes a continuous quenching stock frame suitable for large-size, high-quality bolts. Utility Model Content

[0003] The purpose of this invention is to provide a continuous quenching frame suitable for large-size, high-quality bolts, in order to overcome the aforementioned shortcomings in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a continuous quenching material frame suitable for large-size high-quality bolts, comprising a frame body, wherein a steel braided mesh is provided inside the frame body, and several small supports are arranged at equal intervals inside the steel braided mesh, a straight pin is fixedly connected to the front bottom of each side of the frame body, and a circular hook pin is fixedly connected to the rear bottom of each side of the frame body, and multiple frames are arranged sequentially, wherein a straight pin is provided on the latter frame of two adjacent frames and engages with the circular hook pin on the former frame.

[0005] Furthermore, the steel mesh is woven from heat-resistant steel bars.

[0006] Furthermore, the small bracket is fixedly connected to the interlacing position of the reinforcing bars within the reinforcing bar woven mesh.

[0007] Furthermore, the frame is welded from heat-resistant steel plates.

[0008] Furthermore, the circular hook pin includes a straight arm fixedly connected to the side of the frame, and the straight arm is connected to a notched hook pin via a connecting rod.

[0009] Furthermore, the notch of the notched hook is oriented diagonally upwards.

[0010] Furthermore, the length of the straight pin is slightly greater than the sum of the length of the straight arm and the diameter of the connecting rod.

[0011] Furthermore, the small support is V-shaped.

[0012] In the above technical solution, the continuous quenching material frame suitable for large-size, high-quality bolts provided by this utility model has the following beneficial effects:

[0013] In this invention, bolts are placed inside a frame and mounted on a small support, which reduces the contact area between the bolts and the frame or the steel mesh, thereby improving heating uniformity and efficiency. As multiple frames are transferred by a conveyor belt, they are heated first, carrying bolts, and then transported to the quenching tank. As the conveyor belt continues to move, the previous frame falls into the quenching tank under gravity, dumping the bolts inside into the tank. At the same time, the previous frame is hooked onto the straight pin of the next frame by a circular hook, preventing the frame from falling into the quenching tank, thus improving the cooling efficiency of the bolts.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0015] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A structural schematic diagram provided for an embodiment of this utility model;

[0018] Figure 2 Provided for the embodiments of this utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 A front view of the working state provided for an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Frame; 11. Steel mesh; 101. Small support; 2. Straight pin; 3. Circular hook pin; 301. Straight arm; 302. Hook pin with notch; 303. Connecting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0023] Please see Figures 1-3 A continuous quenching material frame suitable for large-size high-quality bolts includes a frame body 1, a steel braided mesh 11 is provided inside the frame body 1, and several small supports 101 are arranged at equal intervals inside the steel braided mesh 11. A straight pin 2 is fixedly connected to the front bottom of both sides of the frame body 1, and a circular hook pin 3 is fixedly connected to the rear bottom of both sides of the frame body 1. Multiple frames 1 are arranged in sequence, and a straight pin 2 is provided on the latter frame body 1 of two adjacent frames 1, which is inserted into the circular hook pin 3 on the former frame body 1.

[0024] Specifically, in this utility model, the bolts are placed inside the frame 1 and mounted on the small bracket 101, which reduces the contact area between the bolts and the frame 1 or the steel mesh 11, thereby improving the heating uniformity and efficiency. As multiple frames 1 are transferred by the conveyor belt, the multiple frames 1 carrying the bolts are first heated and then transferred to the side of the quenching tank. As the conveyor belt continues to move, the previous frame 1 falls into the quenching tank under the action of gravity, dumping the bolts inside the frame 1 into the quenching tank. At the same time, the previous frame 1 is hung on the straight pin 2 of the next frame 1 by the circular hook pin 3, which prevents the frame 1 from falling into the quenching tank, thereby improving the cooling efficiency of the bolts.

[0025] Furthermore, the steel braided mesh 11 is made of heat-resistant steel braids and has a hollow design, which allows for better airflow of hot air and more uniform heat distribution, resulting in more uniform heating of the bolts.

[0026] Furthermore, the small bracket 101 is fixedly connected to the interlacing position of the reinforcing bars within the steel braided mesh 11. The small bracket 101 is welded to the interlacing position of the reinforcing bars within the steel braided mesh 11. The small bracket 101 has a V-shape with an included angle of 60 degrees. Since the steel braided mesh 11 is made of woven steel bars, each interlacing point is arranged at equal intervals, that is, the small brackets 101 are arranged at equal intervals. By setting the small bracket 101, the bolts are mounted on the small bracket 101, reducing the contact area between the bolts and the load-bearing object, allowing more of the outer surface of the bolts to directly contact the air, so that they heat up more evenly when heated, and better serve the subsequent processes.

[0027] Furthermore, the frame 1 is welded from heat-resistant steel plates, giving it excellent heat resistance.

[0028] Furthermore, the circular hook pin 3 includes a straight arm 301 fixedly connected to the side of the frame 1. The straight arm 301 is connected to a notched hook pin 302 via a connecting rod 303. The notch angle of the notched hook pin 302 is 45 degrees, and the notch of the notched hook pin 302 faces diagonally upward.

[0029] Specifically, multiple frames 1 are connected in series through the snap-fit ​​relationship of straight pins 2 and circular hook pins 3. Next to the quenching tank, there is a conveyor belt and a heating furnace. The multiple frames 1 connected in series are conveyed into the heating furnace by the conveyor belt and then approach the quenching tank. Before entering the heating furnace, the worker only needs to connect the frames 1 to the previous frame 1. Specifically, the frame 1 is picked up and the straight pin 2 is aligned with the notch of the notched hook pin 302. It is moved from the upper to the lower side to connect the next frame 1 to the previous frame 1. Bolts can be placed at both the front and back of the connected frames 1.

[0030] Furthermore, the length of the straight pin 2 is slightly greater than the sum of the length of the straight arm 301 and the diameter of the connecting rod 303, to prevent the straight pin 2 of the subsequent frame 1 from detaching from the circular hook pin 3 of the preceding frame 1 when it sways left and right.

[0031] In this utility model, reference Figures 1 to 3 First, multiple frames 1 connected in series are conveyed into the heating furnace for heating by a conveyor belt, and then sent to the quenching tank. The frames 1 on the conveyor belt drive the frames 1 that are not on the conveyor belt. When the foremost frame 1 detaches from the conveyor belt and falls into the quenching tank, the frame 1 flips 90-120 degrees, causing the screws inside the frame 1 to be emptied. The emptied frame 1 is then removed by the workers and put back into the continuous quenching production line.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A continuous quenching frame suitable for large-size, high-quality bolts, comprising a frame body (1), characterized in that: The frame (1) is provided with a steel braided mesh (11), and a number of small supports (101) are arranged at equal intervals in the steel braided mesh (11). A straight pin (2) is fixedly connected to the front bottom of each side of the frame (1), and a circular hook pin (3) is fixedly connected to the rear bottom of each side of the frame (1). Multiple frames (1) are arranged in sequence, and a straight pin (2) is provided on the latter frame (1) of two adjacent frames (1) and is inserted into the circular hook pin (3) on the former frame (1).

2. The continuous quenching frame for large-size, high-quality bolts according to claim 1, characterized in that, The steel woven mesh (11) is made of heat-resistant steel bars.

3. The continuous quenching material frame for large-size, high-quality bolts according to claim 1, characterized in that, The small bracket (101) is fixedly connected to the interlacing position of the steel bars in the steel mesh (11).

4. A continuous quenching frame for large-size, high-quality bolts according to claim 1, characterized in that, The frame (1) is welded from heat-resistant steel plates.

5. A continuous quenching material frame suitable for large-size, high-quality bolts according to claim 1, characterized in that, The circular hook pin (3) includes a straight arm (301) fixedly connected to the side of the frame (1), and the straight arm (301) is connected to a notched hook pin (302) via a connecting rod (303).

6. A continuous quenching frame for large-size, high-quality bolts according to claim 5, characterized in that, The notch of the notched hook (302) faces diagonally upward.

7. A continuous quenching frame for large-size, high-quality bolts according to claim 6, characterized in that, The length of the straight pin (2) is slightly greater than the sum of the length of the straight arm (301) and the diameter of the connecting rod (303).

8. A continuous quenching frame for large-size, high-quality bolts according to claim 1, characterized in that, The small support (101) is V-shaped.

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